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Electron identification with the ATLAS detector

Electron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flav...

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Autor principal: Tarna, Grigore
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.314.0769
http://cds.cern.ch/record/2286383
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author Tarna, Grigore
author_facet Tarna, Grigore
author_sort Tarna, Grigore
collection CERN
description Electron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flavor decays. In addition, isolation variables are used as further handles to separate signal and background. The measurement of the efficiencies of the electron identification and isolation cuts are performed with the data using tag and probe techniques with large statistics sample of $Z\rightarrow ee$ and $J/\psi \rightarrow ee$ decays. These measurements performed with pp collisions data at $\sqrt{s}=13$ TeV in 2016 (2015) corresponding to an integrated luminosity of 33.9 (3.2) fb$^{-1}$ of $\sqrt{s}=13$ TeV pp are presented.
id cern-2286383
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling cern-22863832021-05-03T07:54:26Zdoi:10.22323/1.314.0769http://cds.cern.ch/record/2286383engTarna, GrigoreElectron identification with the ATLAS detectorParticle Physics - ExperimentElectron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flavor decays. In addition, isolation variables are used as further handles to separate signal and background. The measurement of the efficiencies of the electron identification and isolation cuts are performed with the data using tag and probe techniques with large statistics sample of $Z\rightarrow ee$ and $J/\psi \rightarrow ee$ decays. These measurements performed with pp collisions data at $\sqrt{s}=13$ TeV in 2016 (2015) corresponding to an integrated luminosity of 33.9 (3.2) fb$^{-1}$ of $\sqrt{s}=13$ TeV pp are presented.ATL-PHYS-PROC-2017-173oai:cds.cern.ch:22863832017-09-29
spellingShingle Particle Physics - Experiment
Tarna, Grigore
Electron identification with the ATLAS detector
title Electron identification with the ATLAS detector
title_full Electron identification with the ATLAS detector
title_fullStr Electron identification with the ATLAS detector
title_full_unstemmed Electron identification with the ATLAS detector
title_short Electron identification with the ATLAS detector
title_sort electron identification with the atlas detector
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.314.0769
http://cds.cern.ch/record/2286383
work_keys_str_mv AT tarnagrigore electronidentificationwiththeatlasdetector